They amaze me. They are so primitive. They don't have many of the body systems we have- digestive, respiratory, etc. They are silent. They are largely undiscovered and their mystery fascinates me. They will take over the planet someday with all their little polyps. Seriously, because one species, Turritopsis dohrnii as T. nutricula, "may be effectively immortal because of its ability to transform between medusa and polyp, thereby escaping death".

Whenever I watch them in the tanks at an aquarium my blood pressure goes down, I swear. Watching them move is so relaxing, I inhale and exhale to their rhythm, and it is a perfect one. I want one in my living room in a tank, like in the movie 7 pounds.